| 摘要 |
An interference filter is provided in which a fixed mirror and a movable mirror of the interference filter are selected from an Ag—Au alloy film, an Ag—Cu alloy film, an Ag—Au—Cu alloy film, an Ag—Si—Cu alloy film, an Ag—P—Cu alloy film, an Ag—P—In—Cu alloy film, an Ag—Te—Cu alloy film, an Ag—Ga—Cu alloy film, and an Ag—In—Sn alloy film. |
